Furnace



(No Model.)

G. A. CLARK.

001mm FURNACE.

No. 399,378. Patented Mar. 12, 1889.

uuuuuu' 3 l i I 5 1 vxa 0/ 1, r W I I. I

\ g. I I 4/ I 0,0 2 g; 6 a w w I l: E l .a I

Manda?- N PETERS. Phulu-Ulhognphnr. Washingon. 0.0.

UNITED STATES PATENT OFFICE.

GAl 1:5 ARNOLD CLARK, OF ROCHESTER, l\'E\\' YORK, ASSIGNOR TO CLARKS '7 COKING AND SMOKELESS FURNACE COMPANY, OF SAME PLACE.

GOKlNG-FURNACE.

SPECIFICATION forming part of Letters Patent No. 399,378, dated March 12, 1889.

Application filed October 3, 1888.

To'aZZ whom it may concern.-

.Be it known that I, GATES ARNOLD CLARK, of Rochester, county of Monroe, State of New York, have invented. an Improvement in 5 Coking-Furnaces, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to cokii'lg-furnaces of that class in which soft orbituminous coal, 1

low each coking-oven, while access to the or wood or other carbonaceous material, is

coked and the volatile products driven oif by heat caused to pass up through the fire-bed to assist in combustion and to obtain a maximum amount of heat from the said coal or other material.

This invention is an improvement upon the coking-furnace shown and described in a11- other application, Serial No. 272,292, filed by me April 30, 1888, and has for its object to simplify the construction of the sameand produce a more desirable and efficient furnace.

The particular features in which my invention consists will be pointed out in the claims at the end of this specification.

Figure 1 is a partial front elevation and section of a coking-furnace embodying my invention; and Fig. 2, a longitudinal section of the furnace shown in Fig. 1, the boiler be ing in elevation.

The furnace A, having its walls composed of brick or other suitable material and containing the boiler A, may be substantially such as shown in the application referred to.

The furnace A, at its front end, is provided with two coking ovens or chambers, a, only one of which is shown in Fig. 1, each of said coking-ovens having its outer wall composed, as shown, of one or more arches, c of firebrick, soapstone, &c., and preferably three or more slabs, a", of fire-brick, soapstone, &c., and a top arch, a", of tire-brick or soapstone, supported by the slabs a and side wall of the furnace, the joint between the arch a? and slabs a being luted or cemented, as at a", to render the same gas-tight, the arches (1. of fire-brick or soapstone being supported, as shown, by the front wall of the furnace and by the bridge-wall a. (See Fig. 2.)

The inner side wall of the coking-oven preferably formed by a slab, c of fire-brick,

Serial No. 237,078. (No model.)

soapstone, or other refractory material, the said wall being made solid and extended to the grate-bars b and forming with the side wall of the furnace a passage, 7), which comin unicates with the ash-pit 1) below the sta tionary grate-bars 12 The front wall of the furnace is provided with doors c, only one being shown, by which access may be had to the coking-ovens, and with doors 0 for the auxiliary ash-pit c becombustion-chamber 0 between the cokingovens and to the ash-pit Z) is had by the doors 0 0", respectively.

The front wall of the furnace, below the doors 0 and substantially in line with the passage 0 between the fire-brick arch and the grate-bars, is provided with an auxiliary door,

d, through which a rod or bar maybe inserted to force the coked material from the cokingovens into the combustion-chainber. hen desired, additional draft may be furnished to assist in carrying the volatile products out of the coking-oven into the passage 1) by opening the doors 0 of the auxiliary ash-pits.

\Vith the furnace constructed as above described the passage 1) maybe made comparatively narrow and the coking-ovens and combustion-chamber correspondingly enlarged, thereby obtaining a maximum result from a given-sized furnace.

I claim- 1. The furnace A, provided with grate-bars, and a boiler supported by said furnace, com- 8 5 bined with coking-ovens a, composed of the inner wall, ((7, forming with the wall of the furnace the passage b, and the outer wall forming with the grate-bars a passage, c and with a door or opening in the furnace-wall substantially in line with the said passage, substani iall y as and for the purpose specified.

2. The furnace A, provided with grate-bars, and a boiler supported by said furnace, combined with coking ovens a, composed of the inner wall, a, forming with the wall of the furnace the passage I the outer wall formed by the slabs a and arch d of refractory material, and the top a", and the arch (1?, forming with the grate-bars a passage, c substan- 10o tially as and for the purpose specified.

3. The furnace A, provided with stationary grate-bars, and a boiler supported by said furnace, combined With a coking-oven having its Wall adjacent to the combustion-chamber of the said furnace made to form with the stationary grate-bars a passage, 0 and a flue 0r passage located within said furnace and connecting the said coking-oven with the ashpit of the furnace below the said grate-bars, as and for the purpose specified.

4. A furnace provided with a combustionchamber, a coking-chamber a partition-wall separating said chambers and having a normally open passage wayconnecting said chambers, and a fine or passage-way located the coking-chamber from the combustion chamber being provided at its lower end with an open passage, 0 through Which the coke may be discharged from the coking-chamber into the combustion-chamber, and a door or opening in the furnace-wall substantially in line with the said open passage, substantially as and for the purposes set forth.

6. The furnace A, provided with stationary grate-bars, and a boiler supported by said furnace, combined With a coking-oven having its wall adjacent to the combustion-chamber of the said furnace provided with a passage, c and, with stationary grate-bars in said coking-oven, and a flue 0r passage located Within the said furnace and connecting the said coking-oven with the ash-pit of the furnace below the said grate-bars, as and for the purpose specified.

In testimonywhereof l have signed my name to this specification in the presence of two sub scribing witnesses.

GATES ARNOLD CLARK.

Witnesses:

JEFFERSON L. MEcHEM, WILLIAM S. SMITH. 

